In-line back pressure fluid regulators

An in-line back pressure regulator, comprising:

• a body defining a fluid flow passageway between an inlet and an outlet;
• a loading chamber formed within the body between the inlet and the outlet and aligned with the fluid flow passageway;
• and
• a pressure sensor disposed within the fluid flow passageway and having an aperture to fluidly couple the inlet and the outlet, wherein the pressure sensor at least partially extends into the loading chamber and has a first seal disposed adjacent a first end of the loading chamber to prevent fluid flow between the inlet and the loading chamber and a second seal disposed adjacent a second end of the loading chamber to prevent fluid flow between the loading chamber and the outlet.

An in-line back pressure regulator, the regulator having a body to define a fluid flow passageway between an inlet and an outlet, comprising:

• means for controlling fluid flow within a fluid flow passageway of the regulator between an inlet and an outlet, wherein the fluid flow passageway of the regulator and the inlet and the outlet are axially aligned;
• means for sensing a pressure of a fluid in a sensing chamber, the means for sensing being disposed between the inlet and the outlet and having an aperture to partially define the fluid flow passageway to fluidly couple the inlet and the outlet;
• means for loading the means for sensing the pressure, the means for loading being aligned with the fluid flow passageway between the inlet and the outlet and surrounding at least a portion of the means for sensing;
• and
• means for sealing the means for loading from the fluid flow passageway.